Intraatrial Reentrant Circuit in a Patient with Isomerism of the Left Atrial Appendages and Atrioventricular Septal Defect.

MedLine Citation:

PMID:
22360548
Owner:
NLM
Status:
Publisher

Abstract/OtherAbstract:

An intraatrial reentrant circuit was identified using an electroanatomical mapping system and evaluation of postpacing intervals in a patient with isomerism of the left atrial appendages and atrioventricular septal defect. Intraatrial reentrant tachycardia was eliminated on the basis of our interpretation of the reentry circuit being dependent on a new anatomical obstacle consisting of a right-sided atrioventricular annulus and atrial septation patch. We must consider the possibility of arrhythmogenic obstacles changing, as a patient grows, long after congenital heart disease surgery. (PACE 2012; e1-e3).